package com.sincebest.fivestar.common.utils;

import java.security.MessageDigest;

/**
 * md5 摘要算法
 * @author Jindaodaxia
 *
 */
public class MD5 {

    private MD5() {
    }
    
    public final static String getMessageDigest(String message) {
    	return getMessageDigest(message.getBytes());
    }

    public final static String getMessageDigest(byte[] buffer) {
        char hexDigits[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
        try {
            MessageDigest mdTemp = MessageDigest.getInstance("MD5");
            mdTemp.update(buffer);
            byte[] md = mdTemp.digest();
            int j = md.length;
            char str[] = new char[j * 2];
            int k = 0;
            for (int i = 0; i < j; i++) {
                byte byte0 = md[i];
                str[k++] = hexDigits[byte0 >>> 4 & 0xf];
                str[k++] = hexDigits[byte0 & 0xf];
            }
            return new String(str);
        } catch (Exception e) {
            return null;
        }
    }
    
   public static void main(String[] argv){
	   String str = "Test12345678";
	   System.out.println("md5=" + getMessageDigest(str.getBytes()));
   }
}
